332 DEEP SEA FISHES. 



anterior below the level of the posterior, halfway from the eye to the end of 

 the snout; posterior forward of the U2:)per half of the eye, halfway from the 

 anterior to the orbit. Gill openings small, not as wide as the eye, not 

 reaching as high as the upper edge of the j^ectoral. Muscular segments one 

 hundred and eighteen, plus about thirtj^-five behind the vent. 



Pectorals short, not reaching halfway to the eye, nearly as deep as long. 

 From the vent the caudal region is more acute or tapering than on A. dni- 

 tatus. The caudal rays are inserted on two basal pieces, each bearing five 

 rays, the lower of the two being the shorter; fin pointed. 



Total length three and five sixteenths, length of head three sixteenths, 

 length of caudal fin one sixteenth, snout to vent three, and greatest depth 

 — near the mid-length — three eighths inches. 



Translucent or transparent, muscular portions of the head more opacpie. 

 A group of four or five small spots of black lies below the preopercular and 

 orbital regions ; another group of about five lies below the operculum ; a 

 series of light-centred black spots extends along the median line of the 

 flank from the head to the tail, each spot of which lies near the line at 

 the groove separating the transverse bands of muscle ; and another series, 

 of a larger number of similar spots, extends along the upper edge of 

 the intestine. The s|50ts are like those of A. dciitaius, PI. LXVL, fig 3, and 

 greatly resemble those of Scopeloids. These species are evidently closely 

 allied, the adult forms no doubt being of a single genus, but A. fulcidens, 

 has a larger eye, a shorter snout, more arch upon the crown, a narrower 

 caudal region, and more segments in body and in tail, which suffice to dis- 

 tinguish them. 



station. Latitude. Longitude. Depth. Temperature. Bottom. 



3388 7° C N. 79° 48' W. 1168 fathoms 36.2° F. Gn. glub. Oz. 



Submarine townet, Time, March 9, 1891, 6* 41"" a. m. 



Atopichthys acus sp. n. 

 Plate LXVL figs. 3, 5a. 



Much compressed, depth greatest behind the middle of the length, nearly 

 one eleventh of the total, decreasing gradually forward and somewhat more 

 rapidly backward. Head small, strongly compressed, little wider than the 

 neck, narrower and sharp pointed at the snout; forehead narrow, slightly 

 arched longitudinally, very convex transversely. Eye large ; orbit as long 



